I've just completed a forum-wide title search with astonishing results.
There is no thread – not one – with "rainbow" in the title. (Well, there's actually one about a Sinar rainbow case, and another about Newton or rainbow rings, but that's it!)
Apparently, searching for rainbows right here is just as hard as in the field.
If you're an LFer who has predicted, chased, or captured rainbows with success, what tips or examples can you share? There must be some entertaining stories out there.
I've done a little research, browsing Galen Rowell's famous "Mountain Light."
"Rainbows," he says, "occur only where water droplets of the proper size refract sunlight, which usually happens during the clearing of an afternoon rainstorm when sunlight hits a wet cloud in the distance. To look for a rainbow in a wet cloud, turn toward the anti-solar point, directly away from the sun. The primary arc of a rainbow always forms at a radius of 42 degrees around this point. Thus, no rainbow can be seen across level ground unless the sun is lower than 42 degrees above the horizon; and that is why afternoon sightings are most common."
Hmm, quite interesting, but I think I'd rather let a rainbow find me than follow Galen's insights. Call it the Zen approach, not a scientific one. But maybe Zen isn't enough. What's your approach?
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